On Tue, Jul 19, 2005 at 08:00:21PM +0200, Andreas Bollhalder wrote:
> Hello
> 
> What does I need to change in the source code of QEMU that it would be
> possible to enable write access to the ROM adresses from 0xC800 up to
> 0xEFFF ? For instance, "UMBPCI.SYS"
> (http://www.uwe-sieber.de/umbpci_e.html) can made this range
> accessible for direct access if no BIOS-ROM is using it. The original
> chipset which QEMU emulate (Intel 440FX) does allow this, but in QEMU,
> it won't work.
> 
> Any ideas ?
> 
> Andreas
> 

I'd recommend looking at i440fx_init() in hw/pci.c as a starting point.

Also see if you can modify the constant IO_MEM_ROM.

-- 
Infinite complexity begets infinite beauty.
Infinite precision begets infinite perfection.


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